APA (7th ed.) Citation

Coronet Instructional Media (Firm). (1977). Understanding our earth: Rocks and minerals. Coronet Instructional Media.

Chicago Style (17th ed.) Citation

Coronet Instructional Media (Firm). Understanding Our Earth: Rocks and Minerals. Chicago: Coronet Instructional Media, 1977.

MLA (9th ed.) Citation

Coronet Instructional Media (Firm). Understanding Our Earth: Rocks and Minerals. Coronet Instructional Media, 1977.

Warning: These citations may not always be 100% accurate.